1. Home
  2. For Sale
  3. Truck Parts
  4. Axles & Differentials
  5. Eaton
  6. RSP40

Eaton RSP40 Axles & Differentials For Sale

Close
Your Current Search
Industry
Truck Parts
Category
Axles & Differentials
Manufacturer
Eaton
Model
RSP40
Click the to remove the filter.
Save Search
Email Alert
What's Save Search and Email Alert?
Narrow Your Search
Keyword Search
Search within the selected criteria
Equipment Type
Truck Parts (626)
Category
Axles & Differentials (626)
   Axle Assemblies, Rear (3)    Axle Housings, Front (1)    Axle Housings, Rear (111)    Axle Shafts (20)    Differential Misc. Parts (9)    Differentials, Front (2)    Differentials, Rear (480)
Make
Eaton (626)
Model
RSP40 (626)
Condition
Model Year
-
Horsepower
-
Inspection Report
Yes (0)
Warranty
Yes (0)
No (0)
Price
-
Country
State / Region
Select a country to view available states.
Seller Type
Dealerships (626)
Market Type
For Sale (626)

Shop Axles & Differentials by Subcategory

Quick Filters

Showing 76 - 100 of 626 Listings

76 - 100 of 626 listings
76 - 100 of 626 listings
Eaton RSP40 Rear Axle Housing for a 2005 Kenworth T800

Eaton RSP40 Rear Axle Housing for a 2005 Kenworth T800

$1,495 USD
GOOD USED REAR HOUSING ASSEMBLY/ AG200 AG400 RS404 RSP40 RSP41, Serial#: NA, Core Charge: NA, Hub Bolts: 10, Suspension: AG400
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T800
Will Fit Year(s)2005
Part Number8 BAG
Stock Number121823-23
MLS Number12547348
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2007 Peterbilt 378

Eaton RSP40 Rear Differential for a 2007 Peterbilt 378

$695 USD
RSP40 3.90 GOOD USED/INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.90
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)378
Will Fit Year(s)2007
Part NumberRSP40
Stock Number122823-6
MLS Number12544108
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Axle Housing for a 2003 Peterbilt 385

Eaton RSP40 Rear Axle Housing for a 2003 Peterbilt 385

$1,495 USD
GOOD USED STANDARD AIR LEAF AXLE HOUSING RS404 RSP40, Serial#: 2ks84312, Core Charge: NA, Hub Bolts: 10, Suspension: AIR LEAF
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)385
Will Fit Year(s)2003
Part NumberAIR LEAF
Stock Number122323-20
MLS Number12523577
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2003 Peterbilt 385

Eaton RSP40 Rear Differential for a 2003 Peterbilt 385

$795 USD
RSP40 4.11 GOOD USED TAKEOUT DIFFERENTIAL ASSEMBLY. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: 2ks84312, Core Charge: 250.00, Ratio: 4.11
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)385
Will Fit Year(s)2003
Part NumberRSP-40
Stock Number122323-5
MLS Number12523562
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2010 Peterbilt 386

Eaton RSP40 Rear Differential for a 2010 Peterbilt 386

$795 USD
RSP40 3.70 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: 79368619, Core Charge: 250.00, Ratio: 3.70
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)386
Will Fit Year(s)2010
Part NumberRSP-40
Stock Number112023-8
MLS Number12456880
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2013 Kenworth T660

Eaton RSP40 Rear Differential for a 2013 Kenworth T660

$795 USD
RSP40 3.42 GOOD INSPECTED TAKEOUT/ 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.42
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T660
Will Fit Year(s)2013
Part NumberRSP40
Stock Number90223-14
MLS Number12303223
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Axle Housing for a 2012 Peterbilt 384

Eaton RSP40 Rear Axle Housing for a 2012 Peterbilt 384

$1,295 USD
GOOD USED REAR HOUSING ASSEMBLY/ AG380/FLEXAIR, Serial#: NA, Hub Bolts: 10, Suspension: AG380 FLEX AIR, Brake Type: DRUM
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)384
Will Fit Year(s)2012
Part NumberFLEXAIR AG380
Stock Number82723-1
MLS Number12288556
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2012 Peterbilt 384

Eaton RSP40 Rear Differential for a 2012 Peterbilt 384

$795 USD
RSP40 5.29 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250, Ratio: 5.29
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)384
Will Fit Year(s)2012
Part NumberRSP-40
Stock Number82523-15
MLS Number12281441
CategoryDifferentials, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2010 Peterbilt 384

Eaton RSP40 Rear Differential for a 2010 Peterbilt 384

$895 USD
RSP40 6.17 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: 73044057, Core Charge: 250.00, Ratio: 6.17
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)384
Will Fit Year(s)2010
Part NumberRSP40
Stock Number81423-14
MLS Number12246752
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Axle Housing for a 2010 Peterbilt 384

Eaton RSP40 Rear Axle Housing for a 2010 Peterbilt 384

$1,295 USD
GOOD USED REAR REAR FLEX AIR / AG400L HOUSING, Serial#: 73044057, Core Charge: NA, Hub Bolts: 10, Suspension: FLEX AIR
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)384
Will Fit Year(s)2010
Part NumberNA
Stock Number81423-7
MLS Number12246743
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2013 Kenworth T800

Eaton RSP40 Rear Differential for a 2013 Kenworth T800

$795 USD
GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.55
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T800
Will Fit Year(s)2013
Part NumberRSP-40
Stock Number61823-7
MLS Number12171142
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2006 Peterbilt 379

Eaton RSP40 Rear Differential for a 2006 Peterbilt 379

$795 USD
RSP41 3.55 GOOD USED REAR DIFFFERENTIAL ASSSEMBLY. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 350.00, Ratio: 3.55
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2006
Part NumberRSP41
Stock Number80522-13
MLS Number12097423
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Axle Housing for a 2006 Peterbilt 379

Eaton RSP40 Rear Axle Housing for a 2006 Peterbilt 379

$1,195 USD
GOOD USED REAR HOUSING. HAS SOME SURFACE RUST. BRNG SURFACE WILL BE INSPECTED, Serial#: NA, Hub Bolts: 10, Suspension: FLEX AIR, Brake Type: DRUM
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)379
Will Fit Year(s)2006
Part NumberNA
Stock Number80522-9
MLS Number12097419
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Axle Housing for a Peterbilt 579

2014 Eaton RSP40 Rear Axle Housing for a Peterbilt 579

$950 USD
Eaton Rear Axle Housing, RSP40, w/ Torque Rod Bracket, 10 Hole Pilot, Air Drum ABS Brakes, STD Track. P/N 321319. Removed From 2014 Peterbilt Air Leaf Suspension
ConditionUsed
SuspensionAir Leaf
Fits To Make(s)PETERBILT
Fits To Model(s)579
Stock Number4462-6
MLS Number14319960
CategoryAxle Housings, Rear
Last Updated5/20/2026
Location
Fresno, CA, US
Sold By
Garabedian Equipment
(855) 794-___  SHOW
NUMBERCall Seller
Email Seller
Save
Garabedian Equipment
Eaton RSP40 Rear Differential for a 2004 Kenworth W900

Eaton RSP40 Rear Differential for a 2004 Kenworth W900

$895 USD
RSH40 RSP40 RSP41 3.36 RATIO GOOD INSPECTED TAKEOUT.90D DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 250.00, Ratio: 3.36
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)W900
Will Fit Year(s)2004
Part NumberRSH40
Stock Number31823-11
MLS Number11975197
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2013 Kenworth T660

Eaton RSP40 Rear Differential for a 2013 Kenworth T660

$795 USD
RSP40 RSP41 3.25 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 200.00, Ratio: 3.25
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T660
Will Fit Year(s)2013
Part NumberRSP-40
Stock Number21523-8
MLS Number11930426
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Axle Housing for a 2013 Kenworth T660

Eaton RSP40 Rear Axle Housing for a 2013 Kenworth T660

$1,295 USD
GOOD USED HOUSING ASSEMBLY LATE LOW AIR/ AG400L /FLEX AIR/ AG380 PACCAR LOW AIR MINOR RUST, Serial#: NA, Core Charge: NA, Hub Bolts: 10, Suspension: AG400L
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T660
Will Fit Year(s)2013
Part NumberNA
Stock Number21523-4
MLS Number11930422
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Axle Housing for a 2015 International PROSTAR

Eaton RSP40 Rear Axle Housing for a 2015 International PROSTAR

$1,095 USD
GOOD USED REAR AXLE HOUSING ASSEMBLY/RS404/RSP40 IROS IH AIR, Serial#: NA, Hub Bolts: 10 PILOT, Suspension: IROS, Brake Type: DRUM
ConditionUsed
Fits To Make(s)International
Fits To Model(s)PROSTAR
Will Fit Year(s)2015
Part Numberna
Stock Number120222-21
MLS Number11820334
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2015 International PROSTAR

Eaton RSP40 Rear Differential for a 2015 International PROSTAR

$495 USD
RSP40 RS404 3.36 GOOD INSPECTED TAKEOUT.90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: NA, Core Charge: 200.00, Ratio: 3.36
ConditionUsed
Fits To Make(s)International
Fits To Model(s)PROSTAR
Will Fit Year(s)2015
Part NumberRS404/RSP40
Stock Number120222-8
MLS Number11820320
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2007 Kenworth T800

Eaton RSP40 Rear Differential for a 2007 Kenworth T800

$795 USD
RSP40 3.70 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE, Axle Spline Count: 41, Serial#: KCB, Core Charge: 250, Ratio: 3.70
ConditionUsed
Fits To Make(s)Kenworth
Fits To Model(s)T800
Will Fit Year(s)2007
Part NumberRSP-40
Stock Number102822-8
MLS Number11703919
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Eaton RSP40 Rear Differential for a 2010 Peterbilt 387

Eaton RSP40 Rear Differential for a 2010 Peterbilt 387

$695 USD
RSP41 3.55 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY, Axle Spline Count: 41, Serial#: NA, Core Charge: 150.00, Ratio: 3.55
ConditionUsed
Fits To Make(s)Peterbilt
Fits To Model(s)387
Will Fit Year(s)2010
Part NumberRSP41
Stock Number52422-8
MLS Number11437058
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
Email Seller
Save
Holst Truck Parts
Save Search
Email Alert
What's Save Search and Email Alert?
Want to narrow or modify your search criteria?
Filter by Price
Filter by Year
Filter by Location
Filter by Model
Filter by Keyword
Modify your search
Did you find what you were looking for? Yes No